The converse of the so-called Casimir Effect, quantum repulsion is characterized as a small repulsive force that acts between two close parallel uncharged objects. Generated via quantum fluctuations of the zero-point field in a vacuum, quantum levitation effects were theorized as far back as the Atomic Age and then experimentally verified during the early Information Age.

At the time of its discovery, it was theorized that quantum levitation might eventually play a role in nanotechnology and this prediction was in fact borne out. Since the early days of nano-mechanical fabrication, quantum repulsive effects have been successfully used to greatly reduce, if not entirely eliminate, friction and so-called "stiction" effects in various nanodevices, primarily, manipulators, gears, and motors.

Despite the successful application of quantum levitation to modosophont systems, it was not until the advent of transapience that the full potential of quantum nanotechnology was realized.